<template>
    <div>
        <van-nav-bar
  title="标题"
  left-text="返回"
  right-text="按钮"
  left-arrow
  @click-left="onClickLeft"
  @click-right="onClickRight"
/>
    </div>
</template>
<script>
export default {
    
}
</script>
<style>
    
</style>